A bounty of beans

I went to my neighborhood mercado latino on Saturday in search of cranberry beans.  I didn't find cranberry beans, but I did buy a big bag of Roman beans, because I love them and they were the best price I've ever seen.  Now Wikipedia is telling me that Roman beans are a variety of cranberry beans.  But in Viva Vegan, Terry Hope Romero talks as if they are completely different.  I don't  know who to believe!

This morning I am eating some posole I made with Sangre de Toro beans.  Gross name ("bull's blood"), but the beans are cute, very small and dark, glossy red.

I really like exploring different kinds of beans.  I've been into Indian dals for a long time, and now I am getting more into the Latin American beans.  In addition to Roman beans, on Saturday I bought Dominican reds (dark red with lighter spots, like pinto beans in reverse), and pigeon peas.  Pigeon peas have been hard to find -- I think maybe we have a dearth of Puerto Ricans here in Baltimore.  We've apparently got a critical mass of Peruvians, though -- the mercado has tons of Peruvian products, many of which I have no idea how to use (giant kernels of blue corn still on the cob, anyone?)

I've been making recipes from Viva Vegan and Vegan Eats World over the past couple weeks.  Pictures and recipe reviews to follow.

What is your favorite bean?